✓ Two crowns ✓ Same mass, different density ✓ Vertical slider ✓ Slider works ✓ Slider controls crowns — Slider direction correct ✓ Full slider range — Fall animation ✓ Water displacement ✓ Rising water level ✓ Splash effects ✓ Physics correct ✓ Live mass value ✓ Live volume value ✓ Live density value ✓ Live displaced water ✓ Gilded displaces more ✓ Heureka animation ✓ No external deps ✓ Light bg / dark text ✓ Self-contained HTML
Slider direction is inverted (min=0 maps to air/top visually but standard vertical range inputs render max at top, so the crown moves opposite to expected direction); no timed fall animation — crown position is purely slider-driven with no autonomous drop sequence.
6,015 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0 maps to air/top visually but standard vertical range inputs render max at top, so the crown moves opposite to expected direction); no timed fall animation — crown position is purely slider-driven with no autonomous drop sequence.